Enabling Heterogeneous Gold Catalysis with Patchy Micelles

Abstract

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Accurate and sensitive probing of onset of micellization based on absolute aggregation‐caused quenching effect

“…BDPA-2 were finally obtained as red solid, with a yield of 50%. The purified BDPA-2 were characterized by 1 H NMR (600 MHz), 13 C NMR (151 MHz) as well as high resolution mass spectrometry (HR-MS). 1…”

“…In recent decades, amphiphilic materials have attracted much attention owing to their wide applications in areas such as catalysis, materials science, drug delivery, and so forth, with the specific micellar forming characteristics. [1][2][3][4][5] However, micellar formation of amphiphiles only occurs at a unimer concentration above a definite threshold, that is, the critical micelle concentration (CMC). It is generally acknowledged that amphiphiles present as unimers at a concentration below CMC and start to self-assemble spontaneously to form micelles with specific core-shell structures under the drive of hydrophobic forces at a concentration above CMC.…”

Fibrous Nanozyme Dressings with Catalase-Like Activity for H2O2 Reduction To Promote Wound Healing

“…The high surface-to-volume ratio and porosity of the electrospun membranes exhibit a promising water absorption ability to meet the requirement of strong oxygen permeation . Additionally, the high surface area membranes are ideal as heterogeneous catalysts. , However, a catalytically active membrane that can regulate H 2 O 2 and O 2 levels to improve the wound environment could not be achieved to date.…”

“…37 Additionally, the high surface area membranes are ideal as heterogeneous catalysts. 38,39 However, a catalytically active membrane that can regulate H 2 O 2 and O 2 levels to improve the wound environment could not be achieved to date.…”

Synthesis of Z-Enamides through Heterogeneous Gold-Catalyzed Stereoselective Hydrogenation of Ynamides

“…Gold catalysts have been widely used in organic reactions for their unique ability to activate alkynes. − Owing to recyclability and high selectivity, supported gold nanoparticles (Au/NPs) as the heterogeneous catalyst have attracted much attention. − Compared with Pd nanoparticle catalysts, gold nanoparticles have good reactivity and potentially better selectivity in alkyne activation. , In our previous work, supported gold nanoparticles (Au/TiO 2 ) have been successfully applied for various organic reactions − including Z -selective semihydrogenation of alkynes . Herein, we are glad to report the stereoselective hydrogenation of ynamides to prepare Z -enamides catalyzed by the recyclable commercially available supported gold catalysts using ammonium formate as the hydrogen source (Scheme g).…”